Lead Data Scientist

Role overview

This senior position leads data science strategy for a fast-growing digital bank, shaping how analytics and experimentation deepen customer engagement. The role sits at the intersection of product, engineering, and design, mentoring data scientists while influencing high-impact decisions across the business. Final team placement across areas such as Borrowing, Growth, Payments, FinCrime, Wealth, or Core is matched to the candidate's strengths after interview.

Responsibilities

- Define and evolve the data strategy guiding how customers experience the product day to day - Build and enforce best practices for experimentation so teams can make evidence-based decisions - Partner with product, engineering, design, and research leaders to develop and iterate on new product ideas - Set standards for data work across the organization, championing knowledge sharing and continuous improvement - Mentor data scientists and analytics engineers, raising the technical bar of the wider team - Question existing measurement frameworks and propose stronger ways to evaluate success

Requirements

- Track record of working effectively within cross-functional, fast-moving product teams - Strategic thinker who can connect commercial product decisions to customer value through data - Enthusiasm for mentoring and developing other data scientists and analytics engineers - Hands-on experience with experimentation, causal inference, or similar techniques applied to challenging problems - Comfort digging into nuanced data to build foundational knowledge for new features and products - Strong opinions on how to measure success, with the willingness to challenge conventional approaches

Nice to have

- Background supporting products in borrowing, growth, payments, financial crime, wealth, or core banking domains - Familiarity with self-serve analytics tooling such as Looker

Benefits and work setup

- Compensation range of £95,000 to £130,000 plus performance-linked incentive awards and a benefits package - Office hubs in London and Barcelona, with distributed working available across the UK and occasional travel to London - Relocation support for moves to the UK or Spain, plus visa sponsorship - Flexible hours with autonomy over how and when work gets done - Annual learning budget of £1,000 for books, training, and conferences - Part-time arrangements supported where feasible to accommodate other commitments or work-life balance